#66BE2D#66BE2D

#66BE2D is a light, vivid yellow-green. Relative luminance 0.398; OKLCH L 71.9% C 0.194 H 136.1°. Best body text is #000000 at 8.97:1 contrast (WCAG AA passes).

Color values

HEX#66BE2D
RGBrgb(102, 190, 45)
HSLhsl(96, 62%, 46%)
HSVhsv(96, 76%, 75%)
CMYKcmyk(46.3%, 0%, 76.3%, 25.5%)
CIE-LABlab(69.36, -50.28, 60.41)
CIE-LCHlch(69.36, 78.59, 129.77°)
OKLaboklab(71.91% -0.1401 0.1348)
OKLCHoklch(71.91% 0.194 136.1)
XYZxyz(24.3660, 39.8396, 8.8880)
Luminance0.3984 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66BE2D #852DBE
analogous
#AEBE2D #66BE2D #2DBE3D
triadic
#66BE2D #2D66BE #BE2D66
tetradic
#66BE2D #2DAEBE #852DBE #BE3D2D
square
#66BE2D #2DAEBE #852DBE #BE3D2D
split-complementary
#66BE2D #3D2DBE #BE2DAE
monochromatic
#315B16 #4B8D21 #66BE2D #86D652 #A9E284

Accessibility & contrast

On white

2.34
#66BE2D on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.97
#66BE2D on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BE2D
8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66BE2D#FFFFFF#000000##000000
##66BE2D1.002.348.978.97
#FFFFFF2.341.0021.0021.00
#0000008.9721.001.001.00
##0000008.9721.001.001.00

Color blindness preview

Protanopia (red-blind)
#C5AE08
Deuteranopia (green-blind)
#B9A73D
Tritanopia (blue-blind)
#62B7A3
Achromatopsia (no color)
#A9A9A9

Design tokens & code

CSS
--color: #66be2d;
/* rgb */ color: rgb(102, 190, 45);
/* oklch */ color: oklch(71.9% 0.194 136.1);
Tailwind
colors: {
  custom: {
    50: '#99d271',
    500: '#66be2d',
    950: '#000000',
  },
}
SCSS
$custom: #66be2d;
$custom-light: #99d271;
$custom-dark: #000000;
JSON
{
  "hex": "#66be2d",
  "rgb": {
    "r": 102,
    "g": 190,
    "b": 45
  },
  "hsl": {
    "h": 96.414,
    "s": 61.702,
    "l": 46.078
  },
  "oklch": {
    "l": 0.71907,
    "c": 0.19438,
    "h": 136.1
  },
  "luminance": 0.39841
}

Semantic roles & 50–950 ramp

primary
#66BE2D
secondary
#AC7CCB
accent
#43E5A5
background
#F9FDF7
surface
#F2FAED
border
#CCD3C8
text
#0F1408
muted
#7E837B

Preview Lab

Preview with #66BE2D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →

#66BE2D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva